Drive by the Yusuf Mosque in Boston on a Friday afternoon, prayer day, and you’ll see men and women from across the Muslim world, from Indonesia to Iraq to North Africa, in a wide variety of dress. And none of them care which Islamic sect anyone is from.Drive by the Yusuf Mosque in Boston on a Friday afternoon, prayer day, and you’ll see men and women from across the Muslim world, from Indonesia to Iraq to North Africa, in a wide variety of dress. And none of them care which Islamic sect anyone is from.